基于波形梁护栏的公路路堤风吹雪灾害研究  

Study on the Snowdrift Disaster of Highway Embankment Based on the Corrugated Beam Barrier

作　　者：严东方[1] 李响 查明高[1] 高晖[1] 林达明[3] 杨瑞刚 YAN Dongfang;LI Xiang;ZHA Minggao;GAO Hui;LIN Daming;YANG Ruigang(CCCC Second Highway Survey and Design Institute Co.,Ltd.,Wuhan,Hubei 430056,China;School of Engineering and Technology,China University of Geosciences(Beijing),Beijing 100083,China;Research Institute of Highway Ministry of Transport,Beijing 100088,China;No.2 Hydrologic Engineering Geology Group of Xinjiang Bureau of Geology and Mineral Resources,Changji,Xinjiang 831100,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,湖北武汉430056 [2]中国地质大学(北京)工程技术学院,北京100083 [3]交通运输部公路科学研究院,北京100088 [4]新疆地矿局第二水文工程地质大队,新疆昌吉831100

出　　处：《施工技术（中英文）》2021年第23期74-78,共5页Construction Technology

基　　金：交通运输部建设科技项目(2014318365110);兵团重大科技计划项目(2020AA002)。

摘　　要：新疆地区的风吹雪灾害在我国尤为严重,以乌鲁木齐—尉犁高速公路永丰平原区的公路路堤为研究对象,运用ANSYS Fluent软件模拟不同高度和边坡坡率的路堤在路面和中央隔离带两侧设置波形梁护栏和不设置波形梁护栏2种情况下积雪的堆积规律。结果表明:当设置波形梁时,无论路堤的高度和边坡坡率如何,雪粒在波形梁后的速度总是小于风吹雪的启动风速,尤其在迎风路肩、背风路肩和中央隔离带3处的速度更是为0,因此雪粒会在路面上大量堆积,波形梁对风雪流的阻碍作用明显。The snowdrift in Xinjiang is particularly serious in our country. This paper takes the expressway embankment of Yongfeng Plain from Urumqi to Yuli Expressway as the research object.ANSYS Fluent is used to simulate the accumulation of snow on embankments of different heights and slope rates, with or without the corrugated beam barrier on both sides of the road surface and the middle isolation zone.The results show that when the corrugated beam barrier is installed, the speed of the snow particles behind the corrugated beam barrier is always lower than the starting wind speed of the snowdrift regardless of the height and the slope rate of the embankment, and the speed is even zero at the wind shoulder, the lee shoulder and the middle isolation zone. Therefore, snow particles will accumulate on the road in a large amount, and the corrugated beam barrier has an obvious obstruction to the snow-bearing wind.

关 键 词：高速公路 路堤 灾害 风吹雪 波形梁护栏 堆积规律 有限元分析 

分 类 号：U416.12[交通运输工程—道路与铁道工程]